Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
  • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
  • A01N47/20—N-Aryl derivatives thereof
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
  • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
  • C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
  • C07D317/14—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with substituted hydrocarbon radicals attached to ring carbon atoms
  • C07D317/28—Radicals substituted by nitrogen atoms

Definitions

• This invention relates to fungicidal aniline derivatives.
• Benzimidazole and thiophanate fungicides such as Benomyl (methyl 1-(butylcarbamoyl)benzimidazol-2- ylcarbamate), Fubelidazol (2-(2-furyl)benzimidazole), Thiabendazole (2-(4-thiazolyl)benzimidazole), Carbendazim (methyl benzimidazol-2-ylcarbamate), Thiophanate-methyl (1,2-bis(3-methoxycarbonyl-2-thioureido)-benzene), Thiophanate (1,2-bis(3-ethoxycarbonyl-2-thioureido)benzene), 2-(O,S-dimethylphosphorylamino)-1-(3'-methoxycarbonyl-2'-thioureido)benzene and 2'(O,O-dimethylthiophosphorylamino)-1-(3'-methoxycarbonyl-2'-thioureido
• Cyclic imide fungicides such as Procymidone (3-(3',5'-dichlorophenyl)-1,2-dimethylcyclopropane-1,2-dicarboximide), Iprodione (3-(3',5'-dichlorophenyl)-1-isopropylcarbamoylimidazolidine-2,4-dione), Vinchlozolin (3-(3',5'-(dichlorophenyl)-5-methyl-5- vinyloxazolidine-2,4-dione), ethyl (RS)-3-(3',5'-dichlorophenyl)-5-methyl-2,4-dioxooxazolidine-5-carboxylate, etc., which are effective against various plant diseases, particularly those caused
• herbicides such as Barban (4-chloro-2- butynyl N-(3-chlorophenyl)carbamate), Chlorobufam (1-methyl-2-propynyl N-(3-chlorophenyl)carbamate), Chloropropham (isopropyl N-(3-chlorophenyl)carbamate) and Propham (isopropyl N-phenylcarbamate) are disclosed as exhibiting a fungicidal activity against certain organisms tolerant to some benzimidazole or thiophanate fungicides. However, their fungicidal activity against drug-resistant fungi is not strong enough, and hence, in practice they cannot be used as fungicides.
• R 6 is a lower alkyl group, a lower alkoxy group or a lower alkylamino group and R 7 is a lower alkyl group, a halo(lower)alkyl group or a lower alkylamino group;
• Z is a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a lower alkoxycarbonyl(lower)alkyl group or a group of the formula: or -SR 9 in which R 8 is a lower alkyl group, a cyclo(lower)alkyl group or a phenyl group and Rg is a lower alkyl group, a lower alkoxycarbonyl group or a phenyl group; A is an oxygen atom or a sulfur atom; and B is a lower alkyl group, a lower alkenyl
• phenyl-(lower)alkoxy) group show an excellent fungicidal activity against plant pathogenic fungi which have developed resistance to benzimidazole, thiophanate and/or cyclic imide fungicides. It is notable that their fungicidal potency against the organisms tolerant to benzimidazole, thiophanate and/or cyclic imide fungicides (hereinafter referred to as "drug-resistant fungi, or "drug-resistant strains”) is much higher that that against the organisms sensitive to benzimidazole, thiophanate and/or cyclic imide fungicides (hereinafter referred to as "drug-sensitive fungi” or “drug-sensitive strains").
• lower as used herein in connection with alkyl, alkenyl, alkynyl, alkylene or alkoxy groups is meant that those groups had not more than 6 carbon atoms.
• the compounds (I) are fungicidally effective against a wide scope of plant pathogenic fungi, of which examples are as follows: Podosphaera leucotricha , Venturia inaequalis , Mycosphaerella pomi , Marssonina mali and Sclerotinia mali of apple, Phyllactinia kakicola and Gloeosporium kaki of persimmon, Cladosporium carpophilum and Phomopsis sp.
• the compounds (I) are also fungicidally effective against fungi sensitive to the known fungicides as well as fungi against which the known fungicides are ineffective. Examples of such fungi are Pyricularia oryzae , Pseudoperonospora cubensis , Plasmopara , viticola , Phytophthora infestans , etc.
• the compounds (I) possess a low toxicity and have little detrimental action on mammals and fish. Also, they may be applied to the agricultural fields without being toxic to important crop plants.
• the present invention provides a fungicidal aniline derivative of the formula (I). It also provides a fungicidal composition which comprises, as an active ingredient, a fungicidally effective amount of the compound (I) and an inert carrier or diluent. It also provides a combination composition comprising as active ingredients a compound (I) together with at least one benzimidazole, thiophanate and/or cyclic imide fungicide, which is fungicidally effective against not only drug-sensitive fungi but also drug-resistant fungi, and hence particularly effective for the prevention of plant diseases.
• the compounds of formula (I) may be prepared by one of the following procedures:
• the reaction is usually carried out in the presence of an inert solvent (e.g. benzene, toluene, tetrahydrofuran, chloroform, ethyl acetate or dimethylformamide).
• an inert solvent e.g. benzene, toluene, tetrahydrofuran, chloroform, ethyl acetate or dimethylformamide.
• the reaction may be carried out in the presence of a base (e.g. triethylamine, sodium hydroxide or N,N-diethylaniline) so as to obtain the compound (I) in a high yield.
• a base e.g. triethylamine, sodium hydroxide or N,N-diethylaniline
• the reaction may be carried out at a temperature of 0 to 150°C instantaneously or within 12 hours.
• W and R 10 are each as defined above.
• the reaction is usually carried out in the presence of an inert solvent (e.g. benzene, toluene, xylene, diethyl ether, tetrahydrofuran, dioxane, dimethylformamide, chloroform or carbon tetrachloride).
• an inert solvent e.g. benzene, toluene, xylene, diethyl ether, tetrahydrofuran, dioxane, dimethylformamide, chloroform or carbon tetrachloride
• a catalyst e.g. triethylamine, N,N-diethylaniline, or 1,4-diazabicyclo[2.2.2]-octane
• the reaction may be carried out at a temperature of 0 to 50 C instantaneously or within 10 hours.
• the starting compound (III) can be prepared by reacting a compound of the formula: wherein X, Y and R 1 are each as defined above with phosgene or thiophosgene.
• the reaction is usually carried out in the presence of an inert solvent (e.g. benzene, toluene, xylene or ethyl acetate).
• an inert solvent e.g. benzene, toluene, xylene or ethyl acetate.
• the reaction may be carried out at a temperature of 50° C to the boiling point of the solvent instantaneously or within 10 hours.
• the compound (IV) can be prepared by the reduction of a nitrobenzene of the formula: wherein X, Y and R 1 are each as defined above according to conventional reduction procedures.
• a typical example of such a reduction procedure is illustratively shown below.
• the reaction is usually carried out in the presence of an inert solvent (e.g. benzene, toluene, xylene, dioxane or chloroform).
• an inert solvent e.g. benzene, toluene, xylene, dioxane or chloroform.
• a base e.g. triethylamine, sodium hydroxide or sodium hydride
• the reaction may be carried out at a temperature of 0 to 150°C instantaneously or within 12 hours.
• the compound (I) may also be prepared by reacting a phenol of the formula: wherein X, Y, Z, A and B are each as defined above, with a compound of the formula:
• the reaction is usually carried out in the absence or presence of an inert solvent (e.g. water, benzene, toluene, tetrahydrofuran, dimethylsulfoxide or dimethylformamide) using a dehydrohalogenating agent (e.g. sodium hydroxide, potassium carbonate or sodium hydride) at a temperature of 10 to 100° C for a period of 30 minutes to 12 hours.
• an inert solvent e.g. water, benzene, toluene, tetrahydrofuran, dimethylsulfoxide or dimethylformamide
• a dehydrohalogenating agent e.g. sodium hydroxide, potassium carbonate or sodium hydride
• the phenol of the formula (VII) wherein Z is a hydrogen atom can be prepared by reacting a 4-aminophenol of the formula: wherein X and Y are each as defined above, with a chloride of the formula: wherein A and B are each as defined above.
• the reaction between the 4-aminophenol (VIII) and the chloride is usually carried out in an inert solvent (e.g. benzene, toluene, xylene, diethyl ether, tetrahydrofuran, dioxane, chloroform, carbon tetrachloride, ethyl acetate, pyridine or dimethylformamide) in the presence of a dehydrohalogenating agent (e.g. pyridine, triethylamine, N,N-diethylaniline, sodium hydroxide or potassium hydroxide) at a temperature of 0 to 150° C instantaneously or within 10 hours.
• an inert solvent e.g. benzene, toluene, xylene, diethyl ether, tetrahydrofuran, dioxane, chloroform, carbon tetrachloride, ethyl acetate, pyridine or dimethylformamide
• the phenol of the formula (VII) wherein Z is a hydrogen atom and B is a group of the formula: -W-Rio ⁇ in which W and R 10 are each as defined above, can be also prepared by reacting a 4-hydroxyphenyl isocyanate of the formula: wherein X, Y and A are each as defined above, with an alcohol or thioalcohol of the formula:
• the reaction between the 4-hydroxyphenyl isocyanate (IX) and the alcohol or thioalcohol can be carried out in the absence or presence of an inert solvent (e.g. toluene, xylene, diethyl ether, tetrahydrofuran, dioxane, dimethylformamide, chloroform or carbon tetrachloride).
• an inert solvent e.g. toluene, xylene, diethyl ether, tetrahydrofuran, dioxane, dimethylformamide, chloroform or carbon tetrachloride.
• a catalyst e.g. triethylamine or N,N-diethylaniline 1,4-diazabicyclo[2.2.2]octane.
• the reaction is carried out at a temperature of 0 to 50 C instantaneously or within 10 hours.
• the 4-hydroxyphenyl isocyanate (IX) can be prepared by reacting the 4-aminophenol (VIII) with phosgene or thiophosgene.
• the reaction between the 4-aminophenol (VIII) and phosgene or thiophosgene can be carried out in an inert solvent (e.g. benzene, toluene or ethyl acetate) at a temperature of 50° C to the boiling point of the solvent within 30 minutes to 10 hours.
• an inert solvent e.g. benzene, toluene or ethyl acetate
• the aminophenol (VIII) can be prepared by reducing a 4-nitrophenol of the formula: wherein X and Y are each as defined above according to a conventional reduction procedure.
• the reaction may be carried out in an inert solvent (e.g. ethyl acetate or ethanol) in the presence of a catalyst (e.g. platinum oxide or palladium on carbon) at a temperature of 0 to 60° C under hydrogen gas.
• an inert solvent e.g. ethyl acetate or ethanol
• a catalyst e.g. platinum oxide or palladium on carbon
• the 4-nitrophenol (X) can be prepared, for example, by the method described in the literature [J.Org.Chem., 27 , 218 (1962)].
• Procedure (e):-Furthermore the compound (I) wherein X is a hydroxyiminomethyl group or a lower alkoxyiminomethyl group can be prepared by reacting a benzaldehyde of the formula: wherein Y, Z, A, B and R, are each as defined above, with an equimolar or excess amount of hydroxylamine or a lower alkoxyamine in an inert solvent (e.g. methanol or ethanol). The reaction may be brought to completion in about 0.5 to 12 hours.
• an inert solvent e.g. methanol or ethanol
• the compounds of the formula (I) may be applied as such or in a formulation form such as dusts, wettable powders, oil sprays, emulsifiable concentrates, tablets, granules, fine granules, aerosols or flowables.
• a formulation form such as dusts, wettable powders, oil sprays, emulsifiable concentrates, tablets, granules, fine granules, aerosols or flowables.
• Such formulation form can be formulated in a conventional manner by mixing at least one of the compounds of the formula (I) with an appropriate solid or liquid carrier(s) or diluent(s) and, if necessary, an appropriate adjuvant(s) (e.g. surfactants, adherents, dispersants, stabilizers) for improving the dispersibility and other properties of the active ingredient.
• an appropriate adjuvant(s) e.g. surfactants, adherents, dispersants, stabilizers
• solid carriers or diluents examples include botanical materials (e.g. flour, tobacco stalk powder, soybean powder, walnut-shell powder, vegetable powder, saw dust, bran, bark powder, cellulose powder, vegetable extract residue), fibrous materials (e.g. paper, corrugated cardboard, old rags), synthetic plastic powders, clays (e.g. kaolin, bentonite, fuller's earth), talcs, other inorganic materials (e.g. pyrophyllite, sericite, pumice, sulfur powder, active carbon) and chemical fertilizers (e.g. ammonium sulfate, ammonium phosphate, ammonium nitrate, urea, ammonium chloride).
• botanical materials e.g. flour, tobacco stalk powder, soybean powder, walnut-shell powder, vegetable powder, saw dust, bran, bark powder, cellulose powder, vegetable extract residue
• fibrous materials e.g. paper, corrugated cardboard, old rags
• synthetic plastic powders e.g. paper,
• liquid carriers or diluents examples include water, alcohols (e.g. methanol, ethanol), ketones (e.g. acetone, methylethylketone), ethers (e.g. diethyl ether, dioxane, cellosolve, tetrahydrofuran), aromatic hydrocarbons (e.g. benzene, toluene, xylene, methyl naphthalene), aliphatic hydrocarbons (e.g. gasoline, kerosene, lamp oil), esters, nitriles, acid amides (e.g. dimethylformamide, dimethylacetamide), halogenated hydrocarbons (e.g. dichloroethane, carbon tetrachloride), etc.
• alcohols e.g. methanol, ethanol
• ketones e.g. acetone, methylethylketone
• ethers e.g. diethyl ether, diox
• surfactants are alkyl sulfuric esters, alkyl sulfonates, alkylaryl sulfonates, polyethylene glycol ethers, polyhydric alcohol esters, etc.
• adherents and dispersants may include cesein, gelatin, starch powder, carboxymethyl cellulose, gum arabic, alginic acid, lignin, bentonite, molasses, polyvinyl alcohol, pine oil and agar.
• the stabilizers there may be used PAP (isopropyl acid phosphate mixture), tricresyl phosphate (TCP), tolu oil, epoxydized oil, various surfactants, various fatty acids and their esters, etc.
• the foregoing formulations generally contain at least one of the compounds of the formula (I) in a concentration of about 1 to 95 % by weight, preferably of 2.0 to 80 % by weight.
• the compounds of the formula (I) are generally applied in such amounts as 2 to 100 g per 10 are.
• the compounds of the formula (I) may be used alone.
• their alternate use with benzimidazole, thiophanate and/or cyclic imide fungicides or their combined use with benzimidazole, thiophanate and/or cyclic imide fungicides is favorable.
• each active ingredient may be employed as such or in conventional agricultural formulation forms.
• the weight proportion of the compound of the formula (I) and the benzimidazole, thiophanate and/or cyclic imide fungicide may be from about 1 : 0.1 to 1 : 10.0.
• Typical examples of the benzimidazole, thiophanate and cyclic imide fungicides are shown in Table 2.
• the compounds of the formula (I) may be also used in admixture with other fungicides, herbicides, insecticides, miticides, fertilizers, etc.
• the compounds of the formula (I) When used as fungicides, they may be applied in such amounts as 2 to 100 grams per 10 ares. However, this amount may vary depending upon formulation forms, application times, application methods, application sites, diseases, crops and so on, and therefore, they are not limited to said particular amounts.
• fungicidal composition according to the invention Some practical embodiments of the fungicidal composition according to the invention are illustratively shown in the following Examples wherein % and part(s) are by weight.
• the leaves examined were measured for a percentage of infected area and classified into the corresponding disease indices, 0, 0.5, 1, 2, 4:
• the disease severity was calculated according to the following equation:
• the prevention value was calculated according to the following equation:
• the compounds of the formula (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain.
• commercially available known fungicides such as Benomyl, Thiophanate-methyl and Carbendazim show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain.
• Other tested compounds structurally similar to the compounds of the formula (I) do not show any fungicidal activity on the drug-sensitive strain and the drug-resistant strain.
• the compounds of the formula (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain.
• commecially available known fungicides such as Benomyl, Thiophanate-methyl and Carbendazim show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain.
• Other tested compounds structurally similar to the compounds of the formula (I) do not show any fungicidal activity on the drug-sensitive strain and the drug-resistant strain.
• the compounds of the formula (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain.
• commercially available known fungicides such as Benomyl and Thiophanate-methyl show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain.
• the compounds of the formula (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain.
• commercially available known fungicides such as Benomyl and Thiophanate-methyl show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain.
• the compounds of the formula (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain.
• commercially available known fungicides such as Benomyl and Thiophanate-methyl show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain.
• the compounds of the formula (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain.
• commercially available known fungicides such as Benomyl and Thiophanate-methyl show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain.
• the compounds of the formula (I) of the invention produce no material phytotoxicity, while commercially available herbicides having a chemical structure similar thereto produce considerable phytotoxicity.

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